Spyglass course report: It was as tough as advertised

Spyglass Hill Golf Course was playing to its difficult reputation Thursday as the opening round of the AT&T Pebble Beach National Pro-Am progressed into mid-afternoon.

Seung-yul Noh, 21, of South Korea who briefly held the lead at 7-under through 16 holes and finished with a 5-under 67, was among only two top-10 players on the leaderboard who played at Spyglass Hill.??

Noh is among six players trailing clubhouse leaders Russell Knox and Hunter Mahan who finished at 6-under

Kevin Na, a one-time PGA Tour winner also from South Korea, had a 4-under 68 at Spyglass Hill and is tied with six players.??

Veteran Bob Estes, 47, was briefly tied for the lead early in the opening round when he moved to 4-under and remained there until bogeying the the 18th to finish with a 69 at Spyglass Hill.